Dust collector



9, 1932- J. DRUMGOLD 1,870,947

DUST COLLECTOR Filed Nov. 7, 1930 2 Sheets-Sheet 1 v I eniur A Horney 9, 1932- J. DRUMGOLD 1,870,947

DUST COLLECTOR Filed Nov. 7, 1930 2 Sheets-Sheet 2 Patented Aug. 9, 1932 STATES PATENT YOFF'I," 1

LELAND JOSEPH DRUMGOLD, or OAKLAND, CALIFORNIA, ASSIGNOR or oivmrmrr r van A. NEHER, or OAKLAND,,CAL;IFORNIA1. i V

nus'r coL Ec'ron Application filed November 7, eaosseria at. 494,133.

This invention relates to a. structure which is generally referred to in the prior art as a ,dust, collector, and it has more partlcular dust and other foreign matter from the atmosphere in the factory or other establishment. V Structurally recited, the novelty 1s predicated upon a novel organization of parts which is calculated to fulfill the requirements of a device of this class in a more satisfactory manner than similar prior art devices with which I am familiar, this result being possible due to the particular selection of parts and the proper structural co-relation thereof to provide for more eflective and complete separation and gravitation of the dust and heavy extraneous particles ordinarily carried in dust laden air. 1

The particular assemblage of mechanical parts constituting the alleged novelty Wlll become morereadily apparent from the fol-. lowing description and drawings. In the drawings:

Figure 1 is an elevational view of a dust collector developed in accordance with the present inventive conception.

Figure 2 is a central vertical sectional view on the line 22 of Figure 1.

Figure 3 is a top plan view.

Figure 4 is a horizontal section on the line l1 of Figure 1. 7

The body portion of the structure is primarily in the form of a hollow metallic casing and this embodies a frusto-conical dust accumulating and discharge hopper or receptacle 5. The truncated apex at'the bottom of this constitutes the discharge for conveying the separated material to a suitable point of deposit (not shown).

At its upper end, this receptacle 5 is provided with an outstanding marginal flange which is confined and retained in an annular,

channel-shaped keeper 6 formed on the lower marginal-edge ofthe annular rim 7. This rim? is in turn'provided on its top withan outstanding flange which is clamped in a similar channel-shaped keeper-8 on the outer periphery of the ring-liketop 9.. This top has a centre-lair discharge open mg and depending from this is an open-ended nates JUSiJabOVB the point 6. This cylinder is concentrically arranged with respect'to the rim 7 to V i The numeral 12 designates-a suspension integral cylinder whose lower end tern1i'-' V define an annular separating space spider oryhanger "having attaching ends'13 riveted or otherwise secured to theupper portion of the cylinder. This hanger is disposed on a plane substantially even with the cover rmg or plate 9, and the bight portion thereof 1s centrally apertured to permit passage therethrough of the screw-threaded pin 14 of a hanger tube or pipe 15. Incidentally,

the adjustment, or adjustable connection between the splder 12and the threaded end is afforded bythepresence of adjusting and retainlngnuts 16 and 17 respectively;

The lower screw-threaded end of this tube is fastened to a strap 18 formed in theapex portion of an inverted conical deflector or bafiie, element 19. This balfle has its extreme dlameter matching the diameter of the cylinder 10 and these parts 10 and 19 are spaced apart to form an air discharge opening 20.

, The numeral 21 designates a tangential material inlet or intake. In practice, the dusts-laden material enters under pressure through the tangential intake 21 and swirls under centrifugal action in the space 11 between the rim and the associated cylinder 10. The heavier particles of dirt and dust gravitate down into the conical receptacle 5 where they are discharged. 7 The airis separated and flows upwardly through the 1..

space 20, up through the cylinder 10 and out through the top centralized opening in the cover plate 9. V

The sensitivity of operation of this'structure can be regulated by varying the air discharge opening and this is accomplished by adjusting the conical deflector or baffle '19 toward and from the relatively stationary cylinder 10. e

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size,-an d rearrangement of details coming within the field of invention claimed may be resorted to in actual practice if desired. claimz i i A dust collector comprising an elongated I conical portion and a superposed cylindrical I portion of a diameter substantially equal to the larger diameter of the conical portion,

a concentrically disposed open ended cylin der in the cylindrical portion having its ends substantially transversely aligned with the ends of said cylindrical portion, a cover between the top of the cylinder and the top of the cylindrical vportion, a bailie adjustably mounted onth-e cylinderiat its-upper end,

the means for supporting thebafile being disposed on the inside wall and near the top of the cylinder, said baflie comprising an inverted hollow cone the larger diameter of i which is substantially equal to the diameter der respectively, and a tangential intake in i of the cylinder, the baflle being adjustable to simultaneously provide an air passage of equal height between the entire peripheries of the opposed edges of the command cylinthe cylindrical portion entering a chamber defined by the wall of the cylindrical por tion and the cylinder, said chamber providing an unobstructed path to the passageway defined by said cone and cylinder.

In testimony whereofI affix my'signature. LELAND JOSEPH DRUMGOLD. 

